3 years ago

Need help on the second one

1 answer:

6 0

P = 2w + 2h
factorise
P = 2 (w + h)
divide both sides by the coefficient of w + h
P ÷ 2 = 2 (w + h) ÷ 2
P/2 = w + h
make w the subject of the formula
w = h - p/2

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